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Aligos Therapeutics, Inc. is a clinical-stage biopharmaceutical company dedicated to developing innovative treatments for significant unmet medical needs in both viral and liver diseases. Key candidates in its pipeline include ALG-010133, an s-antigen transport-inhibiting oligonucleotide polymer, which is currently undergoing Phase Ib clinical trials for chronic hepatitis B (CHB). Another asset for CHB, ALG-000184, a capsid assembly modulator, is progressing through Phase I clinical trials. Additionally, Aligos is advancing ALG-020572, an antisense oligonucleotide designed to stop HBsAg translation and secretion. Its portfolio also features siRNA drug candidates, including ALG-125755, ALG-125097, and ALG-125819, which have demonstrated potent capabilities in inhibiting HBsAg release from HBV-infected cells. For non-alcoholic steatohepatitis (NASH), the company is developing ALG-055009, a small molecule THR-ß agonist, now in Phase 1a/1b studies. Aligos has also forged several strategic alliances. These include licensing and collaboration with Luxna Biotech Co., Ltd. for HBV genome-targeting oligonucleotides, a partnership with Emory University for HBV capsid assembly modulator technology, an agreement with Katholieke Universiteit Leuven for the development of coronavirus protease inhibitors, and a deal with Merck to research and develop NASH-focused oligonucleotides. Established in 2018, Aligos Therapeutics is headquartered in South San Francisco, California.
Aligos Therapeutics received a $25 million upfront payment from partner Xiamen Amoytop Biotech following the exclusive license of pevifoscorvir sodium in Greater China for chronic hepatitis B.
The agreement includes up to $420 million in potential clinical and commercial milestones plus tiered royalties, while Aligos retains commercialization rights in the US, Europe, Japan, and South Korea.
Additionally, pevifoscorvir sodium was granted Breakthrough Therapy Designation by China's National Medical Products Administration, and the partners plan to advance ALG-170675 into the clinic in China during the third quarter of 2026.